US 11,658,858 B2
Broadcast signal frame generating apparatus and broadcast signal frame generating method using bootstrap and preamble
Sung-Ik Park, Daejeon (KR); Jae-Young Lee, Daejeon (KR); Sun-Hyoung Kwon, Daejeon (KR); and Heung-Mook Kim, Daejeon (KR)
Assigned to Electronics and Telecommunications Research Institute, Daejeon (KR)
Filed by Electronics and Telecommunications Research Institute, Daejeon (KR)
Filed on Dec. 2, 2021, as Appl. No. 17/540,301.
Application 17/540,301 is a continuation of application No. 17/140,430, filed on Jan. 4, 2021, granted, now 11,218,352.
Application 17/140,430 is a continuation of application No. 16/518,058, filed on Jul. 22, 2019, granted, now 10,917,276, issued on Feb. 9, 2021.
Application 16/518,058 is a continuation of application No. 16/041,930, filed on Jul. 23, 2018, granted, now 10,411,936, issued on Sep. 10, 2019.
Application 16/041,930 is a continuation of application No. 15/556,243, granted, now 10,142,152, issued on Nov. 27, 2018, previously published as PCT/KR2016/002214, filed on Mar. 4, 2016.
Claims priority of application No. 10-2015-0031746 (KR), filed on Mar. 6, 2015; application No. 10-2015-0032353 (KR), filed on Mar. 9, 2015; application No. 10-2015-0046942 (KR), filed on Apr. 2, 2015; and application No. 10-2016-0025829 (KR), filed on Mar. 3, 2016.
Prior Publication US 2022/0094585 A1, Mar. 24, 2022
Int. Cl. H04L 27/26 (2006.01); H04J 11/00 (2006.01); H04L 1/00 (2006.01); H04L 7/08 (2006.01); H04L 65/611 (2022.01)
CPC H04L 27/2627 (2013.01) [H04J 11/004 (2013.01); H04L 1/0041 (2013.01); H04L 1/0058 (2013.01); H04L 1/0068 (2013.01); H04L 1/0071 (2013.01); H04L 1/0072 (2013.01); H04L 7/08 (2013.01); H04L 27/26 (2013.01); H04L 27/2613 (2013.01); H04L 27/2647 (2013.01); H04L 65/611 (2022.05)] 7 Claims
OG exemplary drawing
 
1. A signal demultiplexer, comprising:
a core layer BICM decoder configured to restore core layer data included in a broadcast signal frame, the broadcast signal frame including a bootstrap and a preamble;
an enhanced layer symbol extractor configured to extract enhanced layer symbols by performing cancellation corresponding to the core layer data; and
an enhanced layer BICM decoder configured to restore enhanced layer data corresponding to the enhanced layer symbols,
wherein the preamble includes L1-Basic and L1-Detail, and the bootstrap includes a symbol representing a structure of the preamble, and
wherein the symbol corresponds to a fixed-length bit string signaling L1-Basic FEC modes along with OFDM parameters of the preamble.